2505605560 has 32 divisors (see below), whose sum is σ = 5680659600. Its totient is φ = 994589440.

The previous prime is 2505605527. The next prime is 2505605573. The reversal of 2505605560 is 655065052.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233845 + ... + 244324.

Almost surely, 2^2505605560 is an apocalyptic number.

2505605560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505605560 is an abundant number, since it is smaller than the sum of its proper divisors (3175054040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505605560 is a wasteful number, since it uses less digits than its factorization.

2505605560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478311 (or 478307 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 2505605560 is about 50056.0242128757. The cubic root of 2505605560 is about 1358.2224397992. Note that the first 3 decimals are identical.

The spelling of 2505605560 in words is "two billion, five hundred five million, six hundred five thousand, five hundred sixty".